mirror of https://github.com/nmlgc/ReC98.git
41 lines
819 B
C++
41 lines
819 B
C++
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#include "platform.h"
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#include "pc98.h"
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#include "th03/main/playfld.hpp"
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bool pascal playfield_clip(
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PlayfieldSubpixel center_x, PlayfieldSubpixel center_y
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)
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{
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// ZUN bloat: Needlessly micro-optimized.
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_AX = false;
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playfield_subpixel_t y;
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playfield_subpixel_t x = center_x;
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y = center_y;
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_BX = playfield_clip_negative_radius.x;
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if(x <= static_cast<playfield_subpixel_t>(_BX)) {
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goto outside;
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}
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asm { neg bx };
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_BX += to_sp(PLAYFIELD_W);
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if(x >= static_cast<playfield_subpixel_t>(_BX)) {
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goto outside;
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}
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_BX = playfield_clip_negative_radius.y;
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if(y <= static_cast<playfield_subpixel_t>(_BX)) {
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goto outside;
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}
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asm { neg bx };
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_BX += to_sp(PLAYFIELD_H);
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if(y < static_cast<playfield_subpixel_t>(_BX)) {
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goto inside;
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}
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outside:
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_AL = true;
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inside:
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return _AX;
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}
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#pragma codestring "\x90"
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